| Poinsettia Graham, 1836 |
| Poinsettia barbellata Small, 1903 |
| Poinsettia coccinea Dressler, 1961 |
| Poinsettia colorata (Engelm.) Dressler, 1961 |
| Poinsettia cornastra Dressler, 1975 |
| Poinsettia cuphosperma (Engelm.) Small, 1903 |
| Poinsettia cyathophora (Murray) Klotzsch & Garcke, 1860 |
| Poinsettia dentata (Michx.) Klotzsch & Garcke, 1860 |
| Poinsettia edwardsii Klotzsch & Garcke, 1860 |
| Poinsettia eriantha (Benth.) Rose & Standl., 1912 |
| Poinsettia frangulaefolia (Kunth) Klotzsch & Garcke, 1860 |
| Poinsettia geniculata (Ortega) Klotzsch & Garcke, 1860 |
| Poinsettia graminifolia (Michx.) Millsp., 1909 |
| Poinsettia havanensis (Willd. ex Schltdl. & Cham.) Small, 1903 |
| Poinsettia heterophylla (L.) Klotzsch & Garcke, 1860 |
| Poinsettia morisoniana (Klotzsch) Klotzsch & Garcke, 1860 |
| Poinsettia pedunculata Klotzsch, 1856 |
| Poinsettia pulcherrima Graham, 1836 |
| Poinsettia radians (Benth.) Klotzsch & Garcke, 1860 |
| Poinsettia restiacea (Benth.) Dressler, 1961 |